Robert Joseph Collier (June 17, 1876 – November 9, 1918) was the son of Peter Fenelon Collier, and a principal in the publishing company P. F. Collier & Son. Upon his father's death, he became head of the company, and for a time was editor of Collier's Weekly. He was president of the Aero Club of America.

In his will he made three friends, Peter Finley Dunne, Harry Payne Whitney, and Francis Patrick Garvan, the residuary legatees of his estate and, thus, his publishing company. Collier evidently believed that his wife had sufficient money of her own. In fact, she did not and would receive only a few thousand dollar from her husband's will. Dunne, Whitney, and Garvan then renounced the bequest so that Mrs. Collier could benefit fully.[6] In addition to selling the troubled publishing company, his wife donated their home in Wickatunk, New Jersey to the Sisters of the Good Shepherd who made it a home for troubled young women. This was later opened up to children of all ages and what has become known as Collier High School is still open today.